High Schools in Petaluma Joint Union High

Summary:

The Petaluma Joint Union High district serves grades 9-12 across six schools in the Petaluma area, with two large comprehensive high schools educating the vast majority of the district's nearly 3,000 students.

For families, the two main comprehensive schools, Casa Grande High and Petaluma High, are the academic standouts. Casa Grande High leads in state ranking and test scores, particularly in English and science, while Petaluma High boasts the district's highest graduation rate and best student attendance. Both schools exceed state averages in key subjects and maintain strong graduation rates above 92%.

The district also includes four smaller alternative schools—San Antonio High (Continuation), Valley Oaks High (Alternative), Carpe Diem High (Continuation), and Sonoma Mountain High (Necessary Small School)—which serve specific student needs with much smaller class sizes but face significant challenges with chronic absenteeism and lower academic proficiency rates, despite receiving higher per-student funding. Mathematics is an area for district-wide focus, as only the two comprehensive high schools currently exceed the state average.

District Detail

200 Douglas St.
Petaluma, CA 94952-2567

(707) 778-4604

SchoolDigger Rank:
428^th of 1543 California districts

See the 2025 California District rankings!

Grades served: K-12
Students: 4,900

Primary Schools: 1
Middle Schools: 4
High Schools: 6
Alternative Schools: 0

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				CAST Science (2025)			Smarter Balanced Assessments English Language Arts/Literacy (2025)		Smarter Balanced Assessments Mathematics (2025)		Per Pupil Expenditures (2024)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	CAST Science 11th Grade	CAST Science 12th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 11th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 11th Grade	Smarter Balanced Assessments Mathematics All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Carpe Diem High (Continuation)	Public	9-12	199 Fair St.	Petaluma	94952	Sonoma County	Petaluma Joint Union High	No	(n/a)	No	(n/a)	(707) 778-4796	19	2	9.5	42.1%	14 (73.7%)	0 (0.0%)	2 (10.5%)	0 (0.0%)	0 (0.0%)	1 (5.3%)	0 (0.0%)								(n/a)								$27,201	$1,222	$25,979
Sonoma Mountain High (Necessary Small School)	Public	9-12	299 Casa Grande Rd.	Petaluma	94954	Sonoma County	Petaluma Joint Union High	No	(n/a)	No	(n/a)	(707) 778-4738	21	2	10.6	71.4%	16 (76.2%)	0 (0.0%)	4 (19.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1 (4.8%)								(n/a)								$24,518	$619	$23,899
Casa Grande High	Public	9-12	333 Casa Grande Rd.	Petaluma	94954	Sonoma County	Petaluma Joint Union High	No	(n/a)	No	(n/a)	(707) 778-4677	1,653	77	21.5	48.6%	687 (41.6%)	27 (1.6%)	770 (46.6%)	60 (3.6%)	5 (0.3%)	5 (0.3%)	91 (5.5%)	77.6	453^rd of 2162 public high schools	79.0%		69.2	575^th of 2159 public high schools	73.4%	122	45.9	26.1	44.8	66.7	66.7	35.5	35.5	$16,044	$715	$15,329
Petaluma High	Public	9-12	201 Fair St.	Petaluma	94952	Sonoma County	Petaluma Joint Union High	No	(n/a)	No	(n/a)	(707) 778-4651	1,193	57	20.9	40.9%	712 (59.7%)	15 (1.3%)	371 (31.1%)	22 (1.8%)	4 (0.3%)	4 (0.3%)	55 (4.6%)	67.5	647^th of 2162 public high schools	70.1%		67.3	608^th of 2159 public high schools	71.8%	39	37.9	15.4	36.9	53.2	53.2	36.9	36.9	$16,495	$788	$15,707
San Antonio High (Continuation)	Public	9-12	500 Vallejo St.	Petaluma	94952	Sonoma County	Petaluma Joint Union High	No	(n/a)	No	(n/a)	(707) 778-4758	65	8	8.5	84.6%	17 (26.2%)	2 (3.1%)	41 (63.1%)	1 (1.5%)	1 (1.5%)	0 (0.0%)	2 (3.1%)	12	1914^th of 2162 public high schools	11.5%		11	2007^th of 2159 public high schools	7.0%	93	6.3		6.3	19.2	19.2	0.0	0.0	$28,848	$4,414	$24,434
Valley Oaks High (Alternative)	Public	7-12	540 Vallejo St.	Petaluma	94952	Sonoma County	Petaluma Joint Union High	No	(n/a)	No	(n/a)	(707) 778-4794	43	5	8.0	44.2%	28 (65.1%)	1 (2.3%)	8 (18.6%)	0 (0.0%)	1 (2.3%)	0 (0.0%)	3 (7.0%)								(n/a)					36.4		9.1	$25,092	$602	$24,490

Districts nearby

District	Distance	# of Schools	Statewide Rank
Petaluma City Elementary	0.21 mi	10	787^th
Live Oak Charter District	1.32 mi	1	283^rd
Old Adobe Union	1.99 mi	6	618^th
Cinnabar Elementary	2.47 mi	2	1428^th
Wilmar Union Elementary	2.48 mi	1	381^st

See the top CA California districts

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.